Introduction to 100G Transceiver CFP
100G Ethernet is expected by more and more internet users in order to satisfying their increasing need for higher internet speed and greater bandwidth. Under this circumstance, 100G Ethernet sprang up like the mushrooms in recent years. It is the rising star in the telecommunication industry, so we need to understand 100G Ethernet and its applications in the following content.
100G Ethernet refers to computer networking technologies for transmitting Ethernet frames at rates of 100 gigabits per second (100Gbit/s), respectively. This technology was first defined by the IEEE 802.3ba-2010 standard. It usually needs a variety of devices to build and support the 100G Ethernet. The 100G transceiver is one of the essential one, because fiber connectivity is being condensed and simplified with plug-and-play, hot-swap transceiver miniaturization in higher-speed active equipment.
100G transceiver provides customers 100 Gigabit Ethernet connectivity options for data center networking, enterprise core aggregation, and service provider transport applications. 100G transceivers offer significant advantages over existing solutions in terms of reduced power dissipation and increased density with the added benefit of pluggability for reduced first installed cost. CFP is the common type of 100G transceivers
The CFP transceiver is defined as hot-pluggable optical transceiver form factors to enable 40 Gbit/s and 100 Gbit/s applications, which is specified by a multi-source agreement to produce a common form-factor for the transmission of high-speed digital signals. The c stands for the Latin letter C used to express the number 100 (centum). CFP transceiver was designed after SFP transceiver interface, but it supports much larger internet speed — 100G, which is realized by using 10×10Gbit/s in each direction. The 100G optical interconnects typically means 100GBASE-SR10 in 100 meter MMF, 100GBASE-LR10 and 100GBASE-LR4 in 10km SMF reach, and 100GBASE-ER10 and 100GBASE-ER4 in 40km SMF reach respectively.
CFP transceiver is currently defined two next generation 100G form factors — CFP2 and CFP4. Compared to the existing CFP, CFP2 and CFP4 will be respectively double and quadruple front panel port density. A brief introduction will be given to CFP2 and CFP4.
CFP2 optical transceiver is the half size of a CFP, but it enables users to double their front panel density. The typical size of a CFP2 optical transceiver is 41.5mm nominal width with 104 pin electrical connection. And there is no digital signal processor in package, relying on host card. On the other hand, CFP2’s power usage is less than 12w and it supports 10×10G or 4×25G or 8×25G lanes. CFP2 optical transceiver is available in 100GBASE-LR4 CFP2, 100GBASE-CR10 CFP2, 100GBASE-CR4 CFP2, etc. However, CFP4 transceiver is much smaller than CFP2, which provides 56 pin electrical connection. Its power usage is less than 6w and it also supports 10×10G or 4x25G lanes. In all, CFP2 and CFP4, compared with CFP, are not widely popular in the market due to the high cost of development and research.
CFP transceiver is widely available in the market, especially with the development of 100G Ethernet in recent years. Fiberstore, the leading manufacturer and supplier of optical communication products, strives to offering the best solution for all the customers. We provide many types of CFP2 optical transceivers with high quality and a competitive price, such as 100GBASE-LR4 CFP2, 100GBASE-CR10 CFP2, 100GBASE-CR4 CFP2. Please contact us if you need any profession suggestion.
Overview of 1000BASE-SX SFP Transceiver Module
Ever since the Gigabit Ethernet has been applied to the telecommunication network, SFP transceivers’ footprints cover more and more places, of which the 1000BASE-SX SFP transceiver module plays a vital role in it. We have introduced several types of SFP transceivers in the previous passages. Today we are continuing to talk about 1000BASE-SX SFP transceiver module.
It may strike you odd about the term — 1000BASE-SX. A short profile will be shown to you. The 1000BASE-SX is one of the physical layer standards for Gigabit Ethernet, meaning the single optic fiber 1000Mbps baseband transmission standard. “S” refers to short-range multi-mode optical cable, while “X” means 4B/5B block coding for Fast Ethernet or 8B/10B block coding for Gigabit Ethernet. The standard specifies a transmission distance between 220 metres (62.5/125 µm fiber with low modal bandwidth) and 550 metres (50/125 µm fiber with high modal bandwidth). It is highly popular for intra-building links in large office buildings, co-location facilities and carrier neutral internet exchanges. Therefore, 1000BASE-SX SFP transceiver module is the best seller in those fields.
The picture shows 1000BASE-SX SFP transceiver module.
The 1000BASE-SX SFP transceiver module is compatible with the 1000BASE-SX standard. It operates on legacy 50 μm multimode fiber links and It can support up to 1km over laser-optimized 50 μm multimode fiber cable. The wavelength range that 1000BASE-SX SFP transceiver module transmits and receives is from 770nm to 860nm.
GLC-SX-MM is Cisco 1000BASE-SX SFP transceiver module for multi-mode fiber. Cisco GLC-SX-MM is the SFP fiber optic transceiver module which operates on the 1000BASE-SX standard. It is the multimode module with a wavelength of 850nm. Cisco 1000BASE-SX SFP transceiver module supports hot-pluggable SFP footprint duplex LC connector Interface. This transceiver is built to comply with Multi-Source Agreement (MSA) standards. GLC-SX-MM supports dual data-rate of 1.25Gbps/1.0625Gbps, which is widely used in fiber channel links, Gigabit Ethernet links, Fast Ethernet links, other optical links.
Besides Cisco GLC-SX-MM, Cisco GLC-SX-MMD is also available in the market. They are the two similar models of Cisco 1000BASE-SX SFP. So, what’s the difference between them? As it implies in the word, obviously the letter “D” is the only difference between GLC-SX-MMD and GLC-SX-MM. “D” refers to DOM functionality. DOM stands for Digital Optical Monitoring, which is an widely used standard, intended to give the network administrator the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.
It is pity that GLC-SX-MM SFP has been no longer for sale since 2013 in Cisco, which is completely replaced by GLC-SX-MMD. However, many users still choose to use GLC-SX-MM for the consideration of the costs and usage. Cisco GLC-SX-MMD is much more expensive than GLC-SX-MM, they nearly possess the same function in the switch except the additional DOM functionality. Fiberstore produces and stocks a variety of compliant Cisco GLC-SX-MM and Cisco GLC-SX-MMD with high quality and low prize. And we can also customize optic transceiver to fit your specific requirements. This passage is just a short introduction to 1000BASE-SX SFP transceiver module. If you have other opinions about this, please leave your comment.
Cisco 1000BASE-T SFP—GLC-T
SFP ( small form pluggable ) transceiver, also called Mini-GBIC by the vendors, is a compact, hot-pluggable transceiver to transmit electrical signal into an optical signal, which is designed to support SONET, gigabit Ethernet, Fibre Channel, and other communications standards.
SFP transceivers are available with a variety of different transmitter and receiver types, allowing users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber type (e.g. multi-mode fiber or single-mode fiber). SFP transceivers are also available with a copper cable interface, allowing a host device designed primarily for optical fiber communications to also communicate over unshielded twisted pair networking cable. Today we are going to talk about Cisco 1000BASE-T copper SFP—GLC-T.
Introduction of 1000BASE-T SFP Transceiver Module
For beginners in this fields, they may get dizzied about the term—1000BASE-T. Therefore, a short profile about 1000BASE-T will show to you. 1000BASE-T is one of the physical layer standards for Gigabit Ethernet. The word “BASE” refers to baseband, meaning that an unfiltered line does not require a digital modulation scheme. While the letter “T” refers to Twisted- pair cabling ( Cat-5, Cat-5e, Cat-6, Cat7 ). The data transmitted by 1000BASE-T is via four copper pairs, eight bits at a time.
1000BASE-T SFP transceiver module operates on the 1000BASE T. It supports 10/100/1000 autonegotiation and Auto MDI/MDIX. 1000BASE T SFP transceiver module uses all four cable pairs for the link and five levels coding scheme. It sends and receives simultaneous transmission on each pair. And 1000BASE-T SFP transceiver can be a maximum length of 100 meters.
Details of GLC-T
GLC-T is Cisco 1000BASE-T SFP transceiver module. Cisco GLC-T 1000BASE-T SFP transceiver module is a kind of hot swap of the input / output device, which is compliant to 1000BASE-T standard. GLC-T provides 1Gbps data transfer and full-duplex Gigabit Ethernet connectivity to high-end workstations and between wiring closets over existing copper network infrastructure. And its dimension is 0.6 in x 2.8 in x 0.6 in. GLC-T supports RJ-45 connector and operates on Category 5 unshielded twisted-pair copper cabling with a specified distance up to 100 m (328 ft). This 1000BASE-T SFP is compliant with MSA and is tested for 100% functionality for outstanding network performance.
As an important type of SFP transceiver, the 1000BASE-T SFP transceiver module enjoys a wide popularity among the users. Fiberstore produces and stocks a full range of fiber optic transceivers. Our New Cisco 1000BASE-T SFP transceivers are fully compliant with Cisco routers and switches with high quality and low price. And we can also customize optic transceiver to fit your specific requirements.
A New Interpretation of GLC-LH-SM SFP
IT elites or practitioners of technology industry may be quite familiar with SFP transceiver. But today a brand new perspective will be presented to you. It is very worth reading!
SFP transceiver is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications, which is not standardized by any official standards, expect multi-source agreement. It interfaces a network device, such as swich, router, media converter or similar device, to a fiber optic or copper networking cable.
SFP transceiver is so popular lies in the following reasons. Firstly, it is easier to change and
maintain than traditional transceiver. Secondly, it supports different speeds such as 2Gb, 4Gb, and 8Gb or possibly higher. What’s more, it is the high performance, cost effective transceiver. Last but not least, SFP transceiver is available with a variety of transmitter and receiver types, allowing users to select the appropriate transceiver to provide the required optical reach according to the available optical fiber type.
SFP transceivers have a wide range of varieties that differs in transmission rate (range from 100Mbps to 4Gbps or more), working distance (From 500m to 100km), wavelength (typically 850nm, 1310nm, 1550nm). SFP transceivers are commonly available in several different product numbers:
SFP-GE-F, SFP-GE-S, SFP-GE-L, SFP-GE-Z, GLC-SX-MM, GLC-LH-SM, GLC-ZX-SM, GLC-T, CWDM-SFP-1470, CWDM- SFP-1490, CWDM-SFP-1510, CWDM-SFP-1530, CWDM-SFP-1550, CWDM-SFP-1570, CWDM-SFP-1590, CWDM-SFP-1610.
GLC-LH-SM SFP is Cisco 1000BASE-LX/LH SFP transceiver module. 1000BASE-LX/LH SFP, compatible with IEEE802.3 standard, is not only made for single-mode fiber or multimode fiber. But this transceiver can be used for both single-mode and multimode. It can achieve a distance up to 10km over single mode fiber and up to 550 m on any multimode fiber. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable
GLC-LH-SM can be used in a variety of Cisco fibre channel switches, servers and other fiber-optic network equipment. Currently GLC-LH-SM transceiver has a number of compatible transceiver that can be generic version. This will effectively save time and costs.
GLC-LH-SM SFP transceiver from the distributor is a Cisco brand mini-GBIC but can be used to cooperate with anyone that builds SFP ports such as HP, Finistar, and Juniper among many others. Finding a compliant GLC-LH-SM SFP will save lots of time for IT experts who are now updating network and T3 systems.
You may get comfused about how to choose the GLC-LH-SM SFP. In order to solve your problems, I will give you a hint on selecting an transceiver. First, you should always read the transceiver’s user documentation. Then you are supposed to figure out your needs, and then learn to choose the right GLC- LH-SM SFP. For example, a MCP should be used when your network’s installed optical cable is OM1 or OM2 rated multimode fiber. In short, the MCP is an optical jumper that transmits fiber from a single mode fiber to a multimode fiber.
This post is a reference source for the beginners in this field or those who are lack of knowledge with fiber optic transceiver but have a strong interest in it. If you have any other thought, please leave your comment to share with us.
What Is Armored Fiber Patch Cable?
Fiber patch cable, as one of the most important components of telecommunication, has drawn more and more attention due to the rapid development of telecommunication. Most people were quite familiar with the classification of single-mode fiber patch cable and multimode fiber patch cable. Today, I will present a new type of fiber patch cable to you—armored fiber patch cable.
Definition of Armored Fiber Patch Cable
Armored fiber patch cable is a kind of fiber patch cable, which uses flexible stainless steel tube inside the outer jacket as the armor to protect the fiber glass inside. It remains all the features of standard fiber patch cable, but it is much stronger. And it will not get damaged even if stepped by an adult and they are rodent-resistant.
Structure of Armored Fiber Patch Cable
In the structure of the armored fiber patch cable, the outer sleeve offers protection against rodent, abrasion, twist, etc. It is usually made of plastic such as polyethylene. The next layer between the sleeve and the inner jacket is an armoring materials, such as kevlar, steel, aluminum foil, which is mainly to protect the fiber cable from being stretched during installation. Next the ripcord, ripcords are usually used to splice the cable to connectors or terminators. Then the inner jacket is a flame retardant material to support the inner fiber cable bundle that is made up of strength members, fillers and other structures. The strength members are usually aramid yarn to support the whole fiber cable. This structure is featured by an overall black medium density polyethylene jacket with ripcords.
Types of Armored Fiber Patch Cable
Armored fiber patch cable is usually classified as indoor and outdoor version. Three different kinds of cable armoring are commonly used: double armored, single armored, and non armored. The double armored cables are used at shallow depths near the shore, and the non armored cables are used for most of the ocean floor. The single armored cable is used between these extremes. Usually, the non armored fiber patch cable is cheaper than armored fiber patch cable.
1. Outdoor Armored Fiber Patch Cable
Light armor and heavy armor are the two versions of outdoor armored fiber patch cable. The light armored fiber patch cable, constructed with protective plastic jacket, are crush resistant, bend limiting and water resistant, thus letting these cables suitable for a myriad of applications from interconnects to industrial and semi-harsh environment conditions. While the heavy armored fiber patch cables are usually applied in river bed and the bottom of the sea.
2. Indoor Armored Fiber Patch Cable
Indoor armored fiber patch cable includes simplex armored and duplex armored fiber patch cable. The main difference is that simplex armored fiber optic cable does not contain stainless steel wire woven layer, yet duplex armored fiber patch cable contains stainless steel hose and stainless steel wire woven which are of compressive property, resistance to deflection, rodent resistance, anti-torque.
After going through this passage, you will understand that armored fiber patch cable is the ideal choice for customer who is looking for fiber patch cable with additional durability and protection as well as light weight. For more information, please feel free to visit Fiberstore.
The Classification of Fiber Optic Patch Cord
Optical communication industry is a rapidly growing field with the growth of the economy and people’s daily life. Fiber optic patch cords can be one of the most typical optical components that witnesses the growth of this industry, which is increasingly becoming popular around the world. But You may get confused about the classifications of fiber optic patch cords, I will help you to have a clear understanding of it.
What Is Fiber Optic Patch Cord?
Fiber optic patch cords are the most commonly used components in fiber optic network, capped at either end with connectors that allow it to be rapidly and conveniently connected to CATV, an optical switch or other telecommunication equipment. Its thick layer of protection is used to connect the optical transmitter, receiver, and the terminal box. Sometimes fiber optic patch cords are also called fiber optic jumpers or fiber patch cords. They are the backbone of the fiber optics industry. These fiber patch cords are strands of optically pure glass as thin as human hair. And these cables carrying information is via mode of transmission of light.
Classification
In general, fiber optic patch cord can be divided by transmission medium (long or short distance), by connector structure and by construction of the connector's inserted core cover.
Transmission Medium
Fiber optic patch cord can be divided to single-mode and multimode patch cord according to different transmission medium. Single-mode fiber patch cable is generally yellow with a blue connector, and a longer transmission distance, which has a small core and only one pathway of light. Multi-mode fiber patch cable is generally orange or grey, with a cream or black connector and a shorter transmission distance.
Inserted Core Cover
The connector's inserted core cover conforms to APC, UPC, or PC configuration. A UPC inserted core cover is flat and is used in SARFT and early CATV. An APC connector's inserted core cover is oblique (about 30, ±5 ). To reduce the back reflection of a connector, UPC polish. Industry standard is a minimum of –40dB for PC back reflection measurement and –50dB for UPC back reflection measurement. If even less back reflection is required, an APC might be necessary. An APC connector has an 8ºangle cut into the ferrule. These connectors are identifiable by their green color. An APC polished connector has an Industry Standard Minimum of –60dB measurement. APC fiber ends have low back reflection even when disconnected.
Connector Construction
Fiber optic connectors were introduced with fiber optic technology in the 1980s. A fiber optic connector is a flexible device that connects fiber cables requiring a quick connection and disconnection. There are many types of connectors—FC, SC, ST, LC, MT, MU, E2000, DIN4, etc.
According to these connectors, fiber optic patch cords can be divided into SC patch cord, FC patch cord, ST patch cord, MT-RJ patch cord and LC patch cord, etc. The main differences among them are dimensions and methods of mechanical coupling. Organizations will standardize on one kind of connector, depending on what equipment they usually use.
Conclusion
Fiberstore offers various types of fiber optic patch cords including single-mode patch cords, multimode patch cords, as well as the SC patch cord, FC patch cord, ST patch cord, MT-RJ patch cord and LC patch cord, etc. In addition, for all the fiber optic patch connectors, we also have APC/UPC polish in stock. We can satisfy all your needs here.
QSFP+ Cable—Is It Much Better Than SFP+ Cable?
QSFP+ (Quad Small Form-Factor Pluggable) is an extension of the established I/O interface system SFP+ and was developed for 40 Gb/s Ethernet and 40 Gb/s Infiniband QDR applications. There are QSFP+ cable and SFP+ cable according to these two modules. People might wonder that whether QSFP+ cable is better than SFP+ cable? This passage will provide you a clear answer.
First, the QSFP+ cable is specified for use with the 40GBASE-CR4/SR4, can be copper direct attached cable (DAC) or optical module, while SFP cable with SFP+ connector, is designed to work with equipment with 10G SFP+ interface. QSFP+ cable is obviously four times faster than SFP+ cable in transmission speed as 40G QSFP+ cable is the full duplex 4 channel 850nm parallel active optical cable and its transmission data rate is up to 10.3Gbit/s per channel. The 40G QSFP+ cable is widely used in 40G Ethernet, QDR InfiniBand and data center.
Then, as the 40G QSFP+ cable features QSFP+ connectors on both ends, eliminating the need for expensive QSFP+ transceiver. 40G QSFP+ cable is more cost-effective compared with 10G SFP cable, which is more economical for customers. Taking QSFP+ AOC and SFP+ AOC as an example, QSFP+ AOC is an assembly of 4 full-duplex lanes, where each lane is capable of transmitting data at rates up to 10Gb/s, providing an aggregated rate of 40Gb/s. However, the SFP+ AOC delivers a single bi-directional channel operating at up to 10.3125 Gbps while using a subtle 240mW (typical) of energy per end and the average prize is nearly 20 dollars.
Last but not least, we all know that 40G QSFP+ cables and 10G SFP+ cables are the two main DAC cables on the market. 40G QSFP+ cable is designed for high-density applications that integrate 4 InfiniBand channels at 10 Gbps per lane in order to maximize performance. 40G QSFP+ Cable assemblies are high speed, low latency, twinaxial copper cables. The cable offers a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks. Yet the 10G SFP+ cables provide high performance in 10 Gigabit Ethernet network applications, using an enhanced SFP+ connector to send 10Gbps data through one paired transmitters and receivers over a thin twinax cable. Therefore 40G QSFP+ cable is advanced and more suitable for the fast-developed technology.
In a word, 40G QSFP+ cable is high speed, low latency, twinaxial copper cable used for high speed network backbones, enterprise network switching and network storage. This makes it an optimal solution for handling high bandwidth transmission within short distances such as within a rack or between racks inside energy-efficient data centers while 10G SFP+ can’t reach that.
